按ID数组过滤对象数组 [英] Filter array of objects by array of ids

问题描述

我有一个包含服务ID的数组activeIds，还有另一个包含服务对象的数组servicesList.

I have an array activeIds of ids of services and there is another array servicesList which contains objects of services.

示例:-

activeIds = [202, 204]
serviceList = [{  
                "id":201,
                "title":"a"
               },
               {  
                "id":202,
                "title":"a"
               },
               {  
                "id":203,
                "title":"c"
               },
               {  
                "id":204,
                "title":"d"
               },
               {  
                "id":205,
                "title":"e"
               }];

我想要ID不属于第一个数组即activeIds的所有服务(obj).在上面的示例代码中，我希望ID为201,203,205的服务obj

I want all the services(obj) whose ids are not a part of the first array i.e., activeIds. From the above example code I want service obj of ids 201,203,205

最终输出-

expectedArray = [{  
                "id":201,
                "title":"a"
               },
               {  
                "id":203,
                "title":"c"
               },
               {  
                "id":205,
                "title":"e"
               }];

这是我尝试编码的尝试.但这是完全不正确的.请帮助-

Here is my attempt to code. But it is not correct at all. Please help-

    const activeIds = e; // [202, 204]
    const obj = [];
    this.serviceList.map((s: IService) => {
        activeIds.map((id: number) => {
            if (id !== s.id) {
                obj.push(s);
            }
        });
    });

推荐答案

您可以简单地使用

You can simply use array.filter with indexOf to check the matching element in the next array.

var arr = serviceList.filter(function(item){
  return activeIds.indexOf(item.id) === -1;
});

演示

let activeIds = [202, 204]
let serviceList = [{  
                "id":201,
                "title":"a"
               },
               {  
                "id":202,
                "title":"a"
               },
               {  
                "id":203,
                "title":"c"
               },
               {  
                "id":204,
                "title":"d"
               },
               {  
                "id":205,
                "title":"e"
               }];


let  arr = serviceList.filter(function(item){
      return activeIds.indexOf(item.id) === -1;
    });
    
console.log(arr);

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